Maybe because I'm now writing this comment from inside a 70's housing project in the (former) eastern bloc, but lately (meaning the last 2-3 years) I've seen a re-appraisal of the eastern bloc esthetics.
Apart from these two FB pages (https://www.facebook.com/pages/Socialist-modernism/337958596... and https://www.facebook.com/thecommunisttenant) there are countless Instagram accounts where one can find really interesting photos of the (mostly brutalist) eastern bloc buildings from that era.
IMO the b/w photography this blog uses does flatter the buildings a bit; in full color in person they don't have quite the same feel.
I cheer a little on the inside whenever I see a brutalist building being torn down. There's so very few buildings of the type that are worth anything, and so many of the type that barely last a generation before needing repairs that amount to new construction cost.
Does rust automatically turn people off because of cultural connotations? It's self-finishing, already appears established, and doesn't require maintenance.
As opposed to aluminum oxide which is self limiting - it only forms a thin layer, then stops.